Additional Activities Complete the following table and solve for the unknowns. A population of a certain ethnic group is consisting of three numbers (3, 5, 7). If samples of size 2 will be taken with replacements, complete the following tables, and answer the questions that follow. Sample Mean Observation Sample (X – 4) 2 (X) 1 3 4 8 9 Total Probability P(X) f 1. What is the value of the following? a. population mean b. population variance c. population standard deviation

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